Organophotoreceptors for electrophotography featuring novel charge transport compounds

Abstract

An organic photoreceptor that includes: (a) a charge transport compound having the formula where n is an integer between 2 and 6, inclusive; R1 and R2, independently, are an alkyl group, a cycloalkyl group, or an aryl group, or R1 and R2 combine with the nitrogen atom to form a ring; Y is a bond, a carbon atom, a -CR3 group, an aryl group, a cycloalkyl group, or a cyclosiloxyl group; R3 is hydrogen, an alkyl group, or an aryl group; and X is a linking group having the formula -(CH2)m- wherein m is an integer between 4 and 10, inclusive, and one or more of the methylene groups is optionally replaced by an oxygen atom, a carbonyl group, or an ester group; (b) a charge generating compound; and (c) an electroconductive substrate.

What is claimed is: 
     
       1. A method of preparing an organophotoreceptor comprising laminating together (a) a first substrate comprising a charge transport layer that includes a charge transport compound and a polymeric binder and (b) a second substrate comprising a charge generating layer that includes a charge generating compound and a polymeric binder to form an organophotoreceptor in which said charge transport layer and said charge generating layer are in facing relationship with each other, wherein one of said substrates comprises an electroconductive substrate.   
     
     
       2. The method of claim 1, wherein the charge transport compound has the formula ##STR6## where n is an integer between 2 and 6, inclusive; R 1  and R 2 , independently, are an alkyl group, a cycloalkyl group, or an aryl group, or R 1  and R 2  combine with the nitrogen atom to form a ring; Y is a bond, a carbon atom, a --CR 3  group, an aryl group, a cycloalkyl group, or a cyclosiloxyl group;   R 3  is hydrogen, an alkyl group, or an aryl group; and   X is a linking group having the formula --(CH 2 ) m  -- where m is an integer between 4 and 10, inclusive, and one or more of the methylene groups is optionally replaced by an oxygen atom, a carbonyl group, or an ester group, wherein N is 2, 3, or 4;   (b) a charge generating compound; and   (c) an electroconductive substrate.   
     
     
       3. The method of claim 1, wherein said organphotoreceptor is in the form of a flexible belt. 
     
     
       4. The method of claim 2, wherein n is 2, Y is a bond, and X has the formula --(CH 2 ) m  -- where m is an integer between 4 and 7. 
     
     
       5. The method of claim 1, wherein said charge transport compound has the formula ##STR7## 
     
     
       6. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       7. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       8. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       9. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       10. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       11. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       12. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       13. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       14. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       15. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       16. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       17. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       18. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       19. The method of claim 1, wherein said charge transport compound has the formula 
     
     
       20. The method of claim 1, wherein said charge transport compound has the formula